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The packer is used for zonal oil production, leak finding, water plugging and fracturing.
It is mainly composed of five parts: seat sealing mechanism, seal assembly, anchoring mechanism, locking mechanism and unlocking mechanism. It is a hydraulic packer with novel structure and reliable seat sealing and unlocking performance.
During construction, the tool should be lowered to the position of the card seal as required, and the pressure is 8-10Mpa. When the pressure is stabilized for 15 minutes, the packer fluid cylinder moves to push the slips and rubber barrel upward. The slips jam the casing and the packer rubber barrel seals the annular space. At the same time, under the action of hydraulic pressure, the anchor claw extends to achieve anchoring and seat sealing. To reverse wash the well, hydraulic pressure can be applied to the annulus between the casing and the string. When unsealing, the pipe string is lifted to the specified lifting force and the unsealing shear nails are cut to achieve unsealing.
| Specification | Max outside diameter mm | Diameter mm | Working pressureMPa | Operating temperature ºC | Total length mm | Suitable casing |
| Y241-110 | 114 | 50 | 35 | 120 | 1220 | 118-121 |
| Y241-110M | 114 | 50 | 35 | 150 | 1600 | 118-121 |
| Y241-114 | 114 | 50 | 35 | 120 | 1110 | 121-124 |
| Y241-114M | 114 | 50 | 35 | 150 | 1462 | 121-124 |
1, the rubber cylinder with shoulder protection device, effectively improve the life of the rubber cylinder and the pressure resistance of the rubber cylinder. 2, hydraulic anchor built-in sand control pipe, long-term downhole work will not be due to the anchor claw does not return, the packer can not be unsealed and other failures. 3. The rubber cylinder is made of imported rubber material, which improves the performance of high temperature resistance, pressure difference resistance and aging resistance of the rubber cylinder. The rubber cylinder has good recovery performance after being unsealed for a long time. 4. The support slips are carburized with 20CrMoTi. The slips work flexibly and reliably, and can easily bite any steel grade casing.
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